similar to: ZFS on Linux

I know rsync can do many things but I was wondering if anyone is using it for data deduplication on a large filesystem. I have a filesystem which is about 2TB and I want to make sure I don't have the same data in a different place of a filesystem. Is there an algorithm for that? TIA

Hi all, I'm new to Centos, just moved here from Gentoo Linux. I have to install a server for bioinformatics purposes and I see that default yum repositories do not include any bioinformatics software (i.e. ncbi-toolkit, blat, and others). I'm googling a bit but I can't find a valuable solution: which is (or which are) the best repository I should add to have a satisfying list

Hi all, is there a function (or variable) I can use in a custom init script that identifies the init script name? i.e. I'm porting some init scripts from gentoo, where the $SVCNAME variable identifies the init script name within the script itself... d /* Davide Cittaro Cogentech - Consortium for Genomic Technologies via adamello, 16 20139 Milano Italy tel.: +39(02)574303007 e-mail:

What do you use for monitoring your Apache Tomcat servers? I have used jconsole to manually connect and look at the statistics. I'm wondering if there are any standard tools for watching the health of the java process. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi all, I'm migrating from Gentoo to CentOS... I'm experiencing a rather low performance in NFS r/w (as client). NFS server is solaris (which exports zfs volumes via nfs). The very same exports were mounted with the same parameters (auto,nosuid,exec) on gentoo and centos server (bot x86_64)... It happens that centos is 5-10 times slower either in read and write operations... Ok,

Hi all, Is there a way to dump the current packages installed on a machine and use it do install/uninstall packages on other machines? I've configured one at install time but to speed up other installations I would like to install default packages and then install/uninstall some starting from my first machine configuration... thanks d PS Oh, I'm going to RTFM too... but I'm

Would it be more efficient to use rsync to get filestats instead of using the 'find' command? I would like to know how big a directory is on a filesystem, but this directory has millions of small files. I was wondering if rsync would be more efficient than find when using "-n" options. TIA

I am planning to sign up for a VoIP service in the U.S. Can anyone recommend anything cheap, reliable and good quality? I want to use it for my primary house phone (I also own a cell phone). I also want the service to be asterisk friendly so I can play with it :-) Thanks in advance. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello, I know centos does not use syslog-ng, but I have installed it at my university. My intention is if a particular string appears in my /var/log/messages I would like to get an email alert. For example, if i see a message "foo" in /var/log/kern I would like to email myself. Any idea how to do this? Has anyone done this before? TIA

I need to copy over 100TB of data from one server to another via network. What is the best option to do this? I am planning to use rsync but is there a better tool or better way of doing this? For example, I plan on doing rsync -azv /largefs /targetfs /targetfs is a NFS mounted filesystem. Any thoughts? TIA -------------- next part -------------- An HTML attachment was scrubbed... URL:

We upgraded from a 10/100Mbs to a 2 100/1000 bonding. We notice the speeds of NFS to be around 70-80Mb/sec. Which is slow, especially with bonding. I was wondering if we need to tune anything special with the Network and NFS. Does anyone have any experience with this? TIA

Hi All, I have a backup site and I would like to rsync from production to backup site. However, I would like to have all backups be compressed so I can save space. Can anyone recommend a good way to do this? I am currently using tar and bzip2 to do this. TIA

Hello All: Running 5.2 at our university. We have several student's processes that take up too much memory. Our system have 64G of RAM and some processes take close to 32-48G of RAM. This is causing many problems for others. I was wondering if there is a way to restrict memory usage per process? If the process goes over 32G simply kill it. Any thoughts or ideas? TIA

Is it possible to stream the content of a file using rsync to stdout instead of placing it into a file?

Is it possible to sleep 1 second after each file is rsynced? Ofcourse, I can put this in a for loop and do a sleep after each file is done, I was wondering if there was anything native in rsync for this type of operation. TIA

I know this is a centos forum but I suppose it would be appropriate to ask a redhat question :-) Is anyone aware of a NFS client/server problem with Redhat 5.1 where the client/NFS do extra lookup() and getattr() calls? This is very similar to CentOS' problem, http://bugs.centos.org/view.php?id=2635 My question is, would upgrading the kernel help? or is this a userland issue? TIA

WE have a centos 5.3 install, and our server is keep getting hacked. We see load averages of 500+ and see people from all over the world logging into our server (used last). Is there a good place to start to avoid these kinds of things? For example, here is what I already did. Open up sshd port only setup iptables to only accept port 80 and 22 No FTP No other ports are allowed according to IP

In my syslog I get many of these types of errors: ypserv [4818]: refused connect from 127.0.0.1:57124 to procedure ypproc_match [domain.com,passwd.adjunct.byname;-1) Any idea what this error is? TIA

We use Microsoft Outlook heavy at school but our backed is CentOS. I use echo "Foo" | mail -s "subject" addr at unc.edu a lot. Is it possible to change the priority to High so Outlook will understand it? The priority meaning the email will be sent to the normal email queue but on Outlook it would have the exclamation point. TIA

https://bugzilla.samba.org/show_bug.cgi?id=1529 ------- Additional Comments From thomas@suse.de 2005-09-06 06:37 ------- Now when len is OFF_T is it possible that sum->count (which is size_t) in sum_sizes_sqroot() will rollover too at line: sum->count = (len + (blength - 1)) / blength; ? When we assume all variables have all bits set: 2^64 + (2^32 - 1) / 2^32 = 2^32 + 1